PYSEC-2026-1570 LlamaIndex has an XML Entity Expansion vulnerability in its sitemap parser

An XML Entity Expansion vulnerability, also known as a 'billion laughs' attack, exists in the sitemap parser of the run-llama/llamaindex repository, specifically affecting the Papers Loaders package before version 0.3.2 in llama-index v0.10.0 and above through v0.12.29. This vulnerability allows ...

PYSEC-2026-1569 LlamaIndex vulnerability in ArxivReader class can cause MD5 hash collisions

A vulnerability in the ArxivReader class of the run-llama/llamaindex repository allows for MD5 hash collisions when generating filenames for downloaded papers. This can lead to data loss as papers with identical titles but different contents may overwrite each other, preventing some papers from...

PYSEC-2026-1567 LlamaIndex vulnerability in its ObsidianReader class can lead to Path Traversal exploit

A vulnerability in the ObsidianReader class of the run-llama/llamaindex repository, before version 0.5.2 specifically in version 0.12.27 of llama-index, allows for hardlink-based path traversal. This flaw permits attackers to bypass path restrictions and access sensitive system files, such as...

PYSEC-2026-1557 LLama-Index CLI OS command injection vulnerability

LLama-Index CLI prior to v0.4.1, corresponding to LLama-Index prior to v0.12.21, contains an OS command injection vulnerability. The vulnerability arises from the improper handling of the --files argument, which is directly passed into os.system. An attacker who controls the content of this...

PYSEC-2026-1563 LlamaIndex Improper Handling of Exceptional Conditions vulnerability

A vulnerability in the LangChainLLM class of the run-llama/llamaindex repository, version v0.12.5, allows for a Denial of Service DoS attack. The streamcomplete method executes the llm using a thread and retrieves the result via the getresponsegen method of the StreamingGeneratorCallbackHandler...

PYSEC-2026-1565 RunGptLLM class in LlamaIndex has a command injection

A command injection vulnerability exists in the RunGptLLM class of the llamaindex library, version 0.9.47, used by the RunGpt framework from JinaAI to connect to Language Learning Models LLMs. The vulnerability arises from the improper use of the eval function, allowing a malicious or compromised...

PYSEC-2026-397 llama-index-core Prompt Injection vulnerability leading to Arbitrary Code Execution

A vulnerability was identified in the executils class of the llamaindex package, specifically within the safeeval function, allowing for prompt injection leading to arbitrary code execution. This issue arises due to insufficient validation of input, which can be exploited to bypass method...

PYSEC-2026-396 llama-index-core Command Injection vulnerability

A command injection vulnerability exists in the run-llama/llamaindex repository, specifically within the safeeval function. Attackers can bypass the intended security mechanism, which checks for the presence of underscores in code generated by LLM, to execute arbitrary code. This is achieved by...

PYSEC-2026-398 llama-index-packs-finchat SQL Injection vulnerability

A vulnerability in the FinanceChatLlamaPack of the llama-index-packs-finchat package, versions up to v0.3.0, allows for SQL injection in the runsqlquery function of the databaseagent. This vulnerability can be exploited by an attacker to inject arbitrary SQL queries, leading to remote code...

ai-dynamo (=0.1.0), bentoctl (=0.2.3) +6 more potentially affected by CVE-2026-44345 via bentoml (>=1.0.0a7 <=1.4.3)

bentoml PYPI version =1.0.0a7, =1.0.1, =0.3.12, =0.0.1, =1.0.3, =0.0.10, =0.6.20 - raptor-labsdk =0.3.2 Source cves: CVE-2026-44345 Source advisory: SNYK:PYTHON-BENTOML-16642321...

Security Bulletin: Vulnerabilities in llama_index_core bundled with IBM Fusion, IBM Fusion HCI and Content-Aware Storage.

Summary IBM Fusion, IBM Fusion HCI and Content-Aware Storage includes llamaindexcore which could allow Denial of Service DoS, steal proprietary models, poison cached embeddings, conduct symlink attacks. CVE-2025-5472, CVE-2024-12911, CVE-2024-12704, CVE-2025-5302, CVE-2025-7647. Vulnerability...

ai-dynamo (=0.1.0), bentoctl (=0.2.3) +6 more potentially affected by CVE-2026-35043 via bentoml (>=1.0.0a7 <=1.4.3)

bentoml PYPI version =1.0.0a7, =1.0.1, =0.3.12, =0.0.1, =1.0.3, =0.0.10, =0.6.20 - raptor-labsdk =0.3.2 Source cves: CVE-2026-35043 Source advisory: SNYK:PYTHON-BENTOML-15909743...

cy-ai-trainer (>=0.0.1 <=0.0.2), llama-index-packs-vanna (>=0.0.1 <=0.3.0) +2 more potentially affected by CVE-2026-5320 via vanna (>=0.0.30 <=2.0.2)

vanna PYPI version =0.0.30, =0.0.1, =0.0.1, =1.0.0, =2.0.0 Source cves: CVE-2026-5320 Source advisory: SNYK:PYTHON-VANNA-15873865...

cy-ai-trainer (>=0.0.1 <=0.0.2), llama-index-packs-vanna (>=0.0.1 <=0.3.0) +2 more potentially affected by CVE-2026-5321 via vanna (>=0.0.30 <=2.0.2)

vanna PYPI version =0.0.30, =0.0.1, =0.0.1, =1.0.0, =2.0.0 Source cves: CVE-2026-5321 Source advisory: SNYK:PYTHON-VANNA-15873866...

cy-ai-trainer (>=0.0.1 <=0.0.2), llama-index-packs-vanna (>=0.0.1 <=0.3.0) +2 more potentially affected by CVE-2026-4513 via vanna (>=0.0.30 <=2.0.2)

vanna PYPI version =0.0.30, =0.0.1, =0.0.1, =1.0.0, =2.0.0 Source cves: CVE-2026-4513 Source advisory: SNYK:PYTHON-VANNA-15756488...

cy-ai-trainer (>=0.0.1 <=0.0.2), llama-index-packs-vanna (>=0.0.1 <=0.3.0) +2 more potentially affected by CVE-2026-4511 via vanna (>=0.0.30 <=2.0.2)

vanna PYPI version =0.0.30, =0.0.1, =0.0.1, =1.0.0, =2.0.0 Source cves: CVE-2026-4511 Source advisory: SNYK:PYTHON-VANNA-15756186...

cy-ai-trainer (>=0.0.1 <=0.0.2), llama-index-packs-vanna (>=0.0.1 <=0.3.0) +2 more potentially affected by CVE-2026-4231 via vanna (>=0.0.30 <=2.0.2)

vanna PYPI version =0.0.30, =0.0.1, =0.0.1, =1.0.0, =2.0.0 Source cves: CVE-2026-4231 Source advisory: SNYK:PYTHON-VANNA-15674520...

cy-ai-trainer (>=0.0.1 <=0.0.2), llama-index-packs-vanna (>=0.0.1 <=0.3.0) +2 more potentially affected by CVE-2026-4230 via vanna (>=0.0.30 <=2.0.2)

vanna PYPI version =0.0.30, =0.0.1, =0.0.1, =1.0.0, =2.0.0 Source cves: CVE-2026-4230 Source advisory: SNYK:PYTHON-VANNA-15674519...

ai-dynamo (=0.1.0), bento2seldon (>=0.1.0 <=0.4.0) +16 more potentially affected by CVE-2026-27905 via bentoml (>=0.10.1 <=1.4.3)

bentoml PYPI version =0.10.1, =0.1.0, =0.1.0, =0.0.10, =0.0.5, =0.3.12, =0.0.1, =1.0.3, =0.0.10, =0.0.1, =0.0.1, =0.0.13 and more Source cves: CVE-2026-27905 Source advisory: OSV:GHSA-M6W7-QV66-G3MF...

Denial-of-Service (DoS)

llamaindex.core is vulnerable to a Denial-Of-Service DoS. The vulnerability is due to uncontrolled memory consumption in SimpleDirectoryReader, where all files in a directory are loaded into memory before enforcing the numfileslimit, allowing large directories to exhaust memory and degrade or cra...